RFR [15] JDK-8242145, New System Properties to configure the TLS signature schemes

[Xuelei Fan]

Hi,

Could I get the following update reviewed?

Webrev: http://cr.openjdk.java.net/~xuelei/8242145/webrev.00/

Bug: https://bugs.openjdk.java.net/browse/JDK-8242141
CSR: https://bugs.openjdk.java.net/browse/JDK-8242145
Release-note: https://bugs.openjdk.java.net/browse/JDK-8242147

A third party's TLS implementation may not be able to handle a certain 
signature schemes, and cannot interop with JDK.  Although the 
implementation does not comply to TLS specifications, the impact could 
be significant if an application that uses the implementation is popular.

Thanks,
Xuelei